Spinning-top.



PATENTED AUG. 18

I. L. DAVENPORT.

- SPINNING TOP.

APPLICATION FILED MAY 27, 1908.

7 m m/ W H M. w a- ISAAC L. DAVENPORT, OF CAMDEN, NEW JERSEY.

SPINNING-TOP.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed May 27, 1908. Serial No. 435,217.

To all whom it may concern:

Be it known that I, ISAAC L. DAVENPORT, a citizen of the United States, and a resident of the city and county of Camden and State of New Jersey, have invented certain new and useful Improvements in Spinning-Tops, of which the following is a specification.

, My invention relates to spinning tops of the turbine class, and more particularly to that type shown and described in Patent N 0. 791,080, issued to me May 30th, 1905; and my object is to provide an improved and simplified construction as hereafter fully described in connection with the accompanying drawings, the novel features of which are specifically pointed out in the claims.

Figure 1 is an elevation of a top embodying my invention. Fig. 2 is a vertical section of the same on the line 22 of Fig. 1. Fig. 3 is a separate plan view of theinterposed connectedly formed vanes constructed as indicated in Figs. 1 and 2. Fig. 4 is a similar view to Fig. 1 showing interposed connectedly-formed vanes of modified construction; Figs. 5 and 6 being separate views of the latter before and after bending to required shape. Fig. 7 is a plan view of the lower section of the top indicating another modification.

As shown in the drawings the top .comprises separately formed upper and lower sections marked a and b respectively, with interposed vertical vanes e spacing apart said sections and forming an intermediate air space or chamber 0, which space communicates with a central inlet opening or aperture d in the upper section a, and with discharge openings f between the obliquely arranged vanes e; the construction shown being similar in the main to that of my prior patent referred to, and the operation the same,the latter requiring merely that a blast of air or the like be delivered through the central aperture d in any convenient manner so as to operate upon the vanes e before dischar ing through the openings f, as will be readi y understood.

My present invention consists in the improved and simplified construction of the vanes and manner of rigidly uniting the several parts of the top structure. To this end I provide for interposing the vanes e wholly between the opposed horizontal faces a b of the upper and lower sections and securely and rigidly connecting them to the latter without requiring any peripheral engagement between the parts; and further for a more economical and advantageous vane construction. As shown in Figs. 1, 2 and 3, the circular series of obliquely arranged vanes e are connectedly formed on a circular disk E of the same outside diameter as the sections a and b, by cutting and upturning vertically suitable portions thereof to form said vanes, as indicated. In assembling the parts this vaned disk is simply placed between the sections (1 and b, spacing apart the latter the height of the vanes e; and the latter are then rigidly secured in said position, as shown, by clamping together the sections, preferably by means of sprigs or screws 9 g driven through one section, and the intervening space 0 between the sections, into the other section, so as to tightly draw together the two sections upon the interposed vanes and unite them all in a rigid structure.

It will be readily understood that the specific construction shown and described may be modified within the spirit and scope of my invention. For instance the interposed vanes 0 instead of being connectedly formedon a disk E as stated, may be formed from a strip of sheet metal such as is indicated in Fig. 5; said strip being readily bent to form a connected circular series of oblique vanes c with discharge openings f between them (Fig. 6), and clamped between the sections a and b in similar manner to that already described (Fig. 4). be formed se oarately, instead of connectedly as in the pref erred construction, and suitably set in a circular series upon one of the sections at or b as indicated in Fig. 7, so as to be readily secured thereto by means of the superposed section.

What I claim is 1. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of an interposed vaned disk rigidly connected to said sections.

2. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of an interposed sheet-metal disk having upturned portions forming vanes and rigidly connected to said sections.

3. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of a vaned disk clamped between said sections.

4. In a turbine-top the combination with Or each of the vanes may the centrally apertured upper section and separately formed lower section, of an interposed vaned disk, and clamping means extending through the space between saidsections to unite the parts.

5. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of a circular series of vertical vanes located between said sections tree of peripheral engagement therewith and rigidly connected thereto.

6. In aturbine-top the combination with the centrally apertured upper section and'separately formed lower section, of a circular series of connectedly formed vertical vanes located between said sections free of eripheral engagement therewith and rigid y connected thereto.

7. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of a circular series 01 vertical vanes located between said sections free of peripheral engagement therewith and clamping means extending .i through the space between said sections to unite the parts.

8. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of a circular series of connectedly formed vertical vanes located between said sections free of periph-' eral engagement therewith, and clamping means extending through the space between said sections to unite the parts.

9. In a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of a circular series of vertical vanes clamped between said sections and free of peripheral engagement therewith.

10. In. a turbine-top the combination with the centrally apertured upper section and separately formed lower section, of a circular series of connectedly formed vertical vanes clamped between said sections and free of peripheral engagement therewith.

In testimony whereof, I ai'hx my signature, in the presence of two witnesses.

ISAAC L. DAVENPORT.

Witnesses:

M. J. HOPKE, WM. RANDALL. 

